Mini Stereo Amp (That Doesn't Suck)

There are plenty of small, stereo audio amplifiers out there -- but is this $20 eBay find a hidden gem?
If you're interested in one of these, searching for "bluetooth 5.0 wireless power amplifier" seems to give the best results.
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Music by Dan Mason (danmason.bandca...).
Additional music by Epidemic Sound (www.epidemicsou...).
Intro music by BoxCat Games (www.box-cat.com).